XR22404CL24EVB

XR22404 USB 2.0 4-Port Hub Description The XR22404 is a USB 2.0 4-port hub with a Single Transaction Translator (STT). It may be configured for downstream device charging and is compatible with Battery Charging specification revision 1.1/1.2. The upstream USB interface has an integrated USB 2.0 PHY and device controller that is compliant with both hi-speed (480Mbps) and full-speed (12Mbps) and downstream PHY supporting hi-speed, fullspeed and low-speed (1.5Mbps) on each of the 4 downstream ports. The XR22404 provides ganged power control and global overcurrent sensing for the downstream ports. The XR22404 may be operated from either 5V or 3.3V. If powered from 5V internal regulators provide 3.3V and 1.8V used internally by the device. Port activity and overall hub activity indicators provide status outputs for external LEDs. An external I2C EEPROM may be used with the XR22404 to configure USB device descriptors. FEATURES ■■ USB 2.0 compliant interface ■■ Compatible with Battery Charging specification revision 1.1/1.2 ■■ LED indicators for port, hub or charging activity ■■ Ganged port power enable ■■ Global overcurrent sensing ■■ Single 5V or 3.3V power supply ■■ Single 12MHz Crystal APPLICATIONS ■■ USB port expansion ■■ Docking stations ■■ POS terminals ■■ Factory automation and process controls ■■ Industrial applications Typical Application USB Host Upstream Phy XR22404 Hub Controller TT Port Routing Downstream Phy x4 Device #1 Device #2 Device #3 Device #4 Figure 1. Typical Application REV1B 1/15 XR22404 Absolute Maximum Ratings Operating Conditions Stresses beyond the limits listed below may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Operating temperature range............................ 0°C to 70°C VCC5 supply voltage.........................................4.4V to 5.5V VCC33 supply voltage.......................................3.0V to 3.6V VCC5 supply voltage.......................................... -0.5V to 6V VCC33 supply voltage........................................ -0.5V to 4V Input voltage (all pins except USBD+, USBD–).................... -0.3V to 5.5V Input voltage (USBD+ and USBD–).............. -0.3V to 5.75V Junction temperature.................................................. 125°C REV1B 2/15 XR22404 Electrical Characteristics Unless otherwise noted: TA = 0°C to 70°C, VCC = 4.4V to 5.5V. Conditions Symbol Upstream Port Speed Typ Max Units Suspend 1.2 2.5 mA None 44 mA 1x Full Speed 55 mA 1x High Speed 56 mA 2x Full Speed 59 mA 1x Full Speed, 1x High Speed 68 mA 2x High Speed 74 mA 4x Full Speed 70 mA 4x High Speed 100 mA Number of Active Downstream Ports Downstream Ports Device Speed Min Power Consumption DC Supply Current (VCC = VCC5) 1 High Speed 2 ICC 4 Full Speed Suspend 1.2 2.5 mA None 30 mA 1 1x Full Speed 35 mA 4 4x Full Speed 55 mA Conditions Symbol Upstream Port Speed Typ Max Units Suspend 1.1 2.5 mA None 42 mA 1x Full Speed 50 mA 1x High Speed 54 mA 2x Full Speed 58 mA 1x Full Speed, 1x High Speed 61 mA 2x High Speed 72 mA 4x Full Speed 68 mA 4x High Speed 97 mA Number of Active Downstream Ports Downstream Ports Device Speed Min Power Consumption DC Supply Current (VCC = VCC33) 1 High Speed 2 ICC 4 Full Speed Suspend 1.1 2.5 mA None 29 mA 1 1x Full Speed 34 mA 4 4x Full Speed 53 mA REV1B 3/15 XR22404 Electrical Characteristics (Continued) Unless otherwise noted: TA = 0°C to 70°C, VCC = 4.4V to 5.5V. Symbol Parameter Conditions Min Typ Max Units Non-USB I/O Pins VIL Input low voltage -0.3 0.8 V VIH Input high voltage 2.0 5.5 V VOL Output low voltage IOL = 4 mA 0.4 V VOH Output high voltage IOL = -4 mA IIL Input low leakage current ±10 μA IIH Input high leakage current ±10 μA CIN Input pin capacitance 5 pF 3.3 3.6 V 2.4 V USB I/O Pins(1) 3.3V Regulated Power Output (when VCC5 is connected to 5V input) VCC33 Output voltage Max load current 100 mA 3.0 NOTE: 1. See USB 2.0 Specification for USB I/O pins DC Electrical Characteristics. PWR# LED2 LED1/SCL LED_CTL/CHRGEN VCC33 VCC5 24 23 22 21 20 19 Pin Configuration, Top View OVC# 1 18 BUS_PWR# TEST/SDA 2 17 VBUS_SENSE XTALOUT 3 16 EXT_RST# XTALIN 4 15 UP_DP DM4 5 14 UP_DM DP4 6 13 REXT 10 11 12 DP2 DM1 DP1 9 DM2 8 DP3 DM3 7 GND GND 1 28 TEST4 XTALOUT 2 27 TEST#/SDA XTALIN 3 26 OVC# DM4 4 25 PWR# DP4 5 24 LED2 DM3 6 23 LED1/SCL DP3 7 22 LED_CTL/CHRGEN DM2 8 21 VCC33 DP2 9 20 VCC5 DM1 10 19 BUS_PWR# DP1 11 18 VBUS_SENSE TEST2 12 17 EXT_RST# TEST3 13 16 UP_DP REXT 14 15 UP_DM 24-Pin TQFN NOTE: Center Pad must be connected to digital ground on PCB. 28-Pin SSOP REV1B 4/15 XR22404 Pin Functions TQFN-24 Pin Number SSOP-28 Pin Number Pin Name Type Description Center Pad 1 GND PWR Digital ground (in TQFN package Center Pad must be connected to digital ground). 3 2 XTALOUT O 12 MHz crystal feedback output. 4 3 XTALIN I 12 MHz ± 50 ppm crystal input with load capacitance rating of 16-20 pF. An external 3.3V clock may be used instead on XTALIN, leaving XTALOUT unconnected. 5 4 DM4 I/O Downstream port 4 USB D- data. 6 5 DP4 I/O Downstream port 4 USB D+ data. 7 6 DM3 I/O Downstream port 3 USB D- data. 8 7 DP3 I/O Downstream port 3 USB D+ data. 9 8 DM2 I/O Downstream port 2 USB D- data. 10 9 DP2 I/O Downstream port 2 USB D+ data. 11 10 DM1 I/O Downstream port 1 USB D- data. 12 11 DP1 I/O Downstream port 1 USB D+ data. - 12 TEST2 - Leave unconnected for normal operation. - 13 TEST3 - Leave unconnected for normal operation. 13 14 REXT I External bias resistor. Connect 2.7kΩ 1% resistor from this pin to GND. 14 15 UP_DM I/O Upstream port USB D- data. 15 16 UP_DP I/O Upstream port USB D+ data. 16 17 EXT_RST# I External reset input, active low. Must be asserted for a minimum of 10 µS. 17 18 VBUS_SENSE I Active high. Indicates connection to USB host. Connect to VBUS power input from USB host through series 10kΩ registor. A 100kΩ pull-down registor and 100nF shunt capacitance are required on this pin. 18 19 BUS_PWR# I Bus power indicator, active low. For bus powered mode, connect to ground. For selfpowered mode, connect to logic ‘1’. 19 20 VCC5 PWR 5V power to internal 5V to 3.3V regulator, unused when device is powered by 3.3V. 20 21 VCC33 PWR 3.3V power input, when device is powered by 3.3V. If device is powered by 5V to VCC5 pin, decouple this pin with 4.7 µF. 21 22 LED_CTL/ CHRGEN I/O LED hub active indicator or downstream port charge enable, active high. May also be used in conjunction with port status LEDs. If sampled high during power up reset, all downstream ports may be used as charging ports. Refer to Table 1. 22 23 LED1/SCL I/O Port 1 LED indicator or I2C clock for external EEPROM. Max source current 3 mA. May be used in conjunction with LED_CTL/CHRGEN pin. 23 24 LED2 I/O Port 2 LED indicator. Max source current 3 mA. May be used in conjunction with DRV pin. Refer to Figure 3. 24 25 PWR# O Power enable for all downstream devices. Asserted when XR22404 device is configured and OVC# is not asserted. Deasserted (high) if OVC# input is asserted or XR22404 is not configured. 1 26 OVC# I Downstream port global overcurrent indicator, active low. 2 27 TEST#/SDA I Test mode enable, active low or I2C serial data for external EEPROM. Tie to logic ‘1’ for normal device operation or connect to serial data of I2C EEPROM. - 28 TEST4 - Leave unconnected for normal operation. NOTE: Type: I = Input, O = Output, I/O = Input/Output, PWR = Power, OD = Open-Drain. REV1B 5/15 XR22404 Functional Block Diagram USB Host XR22404 Upstream Phy Upstream Port Controller Port Indicators LED Controller 12 MHz Oscillator PLL (x40) Overcurrent Detection Hub Controller 5V to 3.3V Regulator Hub Activity Indicator 3.3V to 1.8V Regulator 480 MHz Power Control Downstream Port Controller Port Routing Switch TT Downstream Phy #1 Downstream Phy #2 Downstream Phy #3 Downstream Phy #4 Device #1 Device #2 Device #3 Device #4 Figure 2. Functional Block Diagram REV1B 6/15 XR22404 Applications Information Functional Description The XR22404 hub has a single transaction translator that allows the USB 2.0 hub to take incoming high speed packets from the USB host on the upstream port and translate these commands if necessary, to full or low speed commands on any of the 4 downstream ports. Additionally, the XR22404 can provide battery charging on all four downstream ports compatible with the USB Battery Charging Specification revision 1.1/1.2. USB Interface The hub function of the XR22404 supports one configuration and utilizes the following USB endpoints: ■■ Control ■■ Status endpoint change endpoint The XR22404 hub may be configured for bus powered mode with a maximum power of 500 mA or self-powered mode by connecting the BUS_PWR# pin to the appropriate logic state. In bus powered mode, downstream ports are limited to low power (100 mA or less). When self-powered, downstream devices can draw up to 500 mA on each of the four ports. USB Vendor ID Exar’s USB vendor ID is 0x04E2. USB Product ID Exar’s USB hub product ID is 0x0404. Device Reset The XR22404 has both an automatic power-up reset and an external hardware pin reset. Normal hub operation or charging mode is sampled on the LED_CTL/CHRGEN pin at device reset. Refer to Table 1 for further description of charging modes. USB Suspend All USB peripheral devices must support the USB suspend mode. Per USB standard, the XR22404 device will begin to enter the suspend state if it does not detect any activity, (including Start of Frame or SOF packets) on its USB data lines for 3 ms. In bus powered mode the peripheral device must then reduce power consumption from VBUS power within the next 7 ms to the allowed limit of 2.5 mA for the suspended state. Note that in this context, the “device” is all circuitry (including the XR22404) that draws power from the host VBUS. Each attached downstream port is also allowed an additional 2.5 mA of suspend current. If no devices are connected to the XR22404 downstream ports, the USB host will suspend the hub. Ganged Power Control and Global Overcurrent Sensing The OVC# pin is used as a global overcurrent protection input for current sensing. The PWR# pin will be asserted whenever the OVC# input pin is asserted or the XR22404 device is not yet configured. REV1B 7/15 XR22404 Applications Information (Continued) Battery Charging The XR22404 will provide downstream charging irrespective of its state, i.e., enumerated, detached, operational, or suspended as long as it is powered by an external source, i.e., self-powered. In bus powered mode, VBUS power is not capable of providing sufficient power for the XR22404 to charge downstream devices. If the XR22404 device is self-powered and LED_CTL/CHRGEN pin is tied to a logic ‘1’ during power up or external reset, the XR22404 battery charging function will be enabled on all downstream ports. If the device is self-powered and connected to an upstream USB host, the XR22404 will function as a Charging Downstream Port (CDP). If the device is self-powered but not connected to a USB host, the XR22404 will function as a Dedicated Charging Port (DCP). Refer to Table 1. Table 1. Downstream Port Capability CHRGEN VBUS_SENSE BUS_PWR# Capability Logic ‘1’ Logic ‘1’ Logic ‘1’ CDP - Connected to upstream USB host, downstream ports may be used in normal hub operation or for charging. Logic ‘1’ Logic ‘0’ Logic ‘1’ DCP - Not connected to upstream USB host, all downstream ports may be used for charging. “X” Logic ‘1’ Logic ‘0’ SDP - Bus power is not capable of providing enough power for battery charging capability, downstream ports used in normal hub operation. Logic ‘0’ Logic ‘1’ “X” SDP - Normal hub operation. USB Hub Drivers All Operating Systems provide a native USB hub device driver required for the XR22404 device to operate. No other device drivers are necessary for the XR22404. Regulated 3.3V Power Output The XR22404 internal voltage regulator provides 3.3 VDC output power from 5V input, which can be utilized by other circuitry. Refer to Electrical Characteristics on page 2 for maximum power capability. REV1B 8/15 XR22404 Applications Information (Continued) External EEPROM An external I2C EEPROM may be used with the XR22404 to configure USB device descriptors and the number of downstream ports. The contents of the EEPROM are described in Table 2. In order for contents of the EEPROM to be used by the XR22404, both the EEPROM check values at address 0x00, 0x01 and the checksum at address 0x1F must be correct. If either field is incorrect or reserved fields are not set to 0x00, the EEPROM contents will be ignored and the device will use the default descriptor values. Table 2. EEPROM Contents Address Content Description 0x00 0x40 EEPROM check value. 0x01 0x1A EEPROM check value. 0x02 Vendor ID, LSB idVendor field LSB of device descriptor. 0x03 Vendor ID, MSB idVendor field MSB of device descriptor. 0x04 Product ID, LSB idProduct field LSB of device descriptor. 0x05 Product ID, MSB idProduct field MSB of device descriptor. 0x06 Device Release, LSB bcdDevice field LSB of device descriptor in binary coded decimal format. 0x07 Device Release, MSB bcdDevice field MSB of device descriptor in binary coded decimal format. 0x08 to 0x19 Reserved 0x1A Downstream Ports 0x1B to 0x1E Reserved Must be 0x00. 0x1F Checksum Bitwise checksum of EEPROM values from address 0x00 to 0x1E. Must be 0x00. Number of downstream ports in the bNbrPorts field of the hub descriptor. REV1B 9/15 XR22404 Applications Information (Continued) LED Indicators LED indicators in the XR22404 may be used for downstream port and hub activity indicators or as a downstream charging indicator. Figure 3 demonstrates individual and hub activity indicators. Figure 4 demonstrates a joint port activity along with hub activity indicators. Green Port 1 Activity LED1/SCL Green Port 3 Activity Green Port 2 Activity XR22404 LED2 Green Port 4 Activity LED_CTL/CHRGEN Hub active indicator (optional) Figure 3. Port and Hub Activity Indicators REV1B 10/15 XR22404 Applications Information (Continued) 3.3V LED1/SCL XR22404 LED2 LED_CTL/CHRGEN Hub active indicator Figure 4. Joint Port and Hub Activity Indicators External Crystal A 12 MHz ± 50 PPM fundamental frequency external crystal must be connected between the XTALIN and XTALOUT pins of the XR22404 device. The crystal should have a rated load capacitance of 16-20pF. However, note that both the load capacitors and feedback resistance are internal to the XR22404 device as shown. Y1 Figure 5. Typical Oscillator Connections REV1B 11/15 XR22404 Mechanical Dimensions TQFN-24 TOP VIEW BOTTOM VIEW SIDE VIEW TERMINAL DETAILS Drawing No.: POD-00000091 Revision: B REV1B 12/15 XR22404 Recommended Land Pattern and Stencil TQFN-24 TYPICAL RECOMMENDED LAND PATTERN TYPICAL RECOMMENDED STENCIL Drawing No.: POD-00000091 Revision: B REV1B 13/15 XR22404 Package Description (Continued) SSOP-28 TOP VIEW FRONT VIEW SIDE VIEW TERMINAL DIMENSION TYPICAL RECOMMENDED LAND PATTERN 1. Dimensions and tolerance per Jedec MO-150 Drawing No. : POD - 00000090 Revision: A REV1B 14/15 XR22404 Ordering Information(1) Part Number Operating Temperature Range Lead-Free 0°C to 70°C Yes(2) XR22404CL24TR-F XR22404CG28TR-F Package Packaging Method 24-pin TQFN Reel 28-pin SSOP Reel XR22404CL24EVB Evaluation board for TQFN-24 XR22404CG28EVB Evaluation board for SSOP-28 NOTE: 1. Refer to www.exar.com/XR22404 for most up-to-date Ordering Information. 2. Visit www.exar.com for additional information on Environmental Rating. Revision History Revision Date 1A Aug 2016 1B August 2018 Corporate Headquarters: 5966 La Place Court Suite 100 Carlsbad, CA 92008 Tel.:+1 (760) 692-0711 Fax: +1 (760) 444-8598 www.maxlinear.com Description Initial Release Update to MaxLinear logo. Update format and Ordering Information. Changed QFN package name to TQFN. Input voltage absolute max changed to 5.5V. 3V3_OUT changed to VCC33. XTALIN pin description updated. High Performance Analog: 1060 Rincon Circle San Jose, CA 95131 Tel.: +1 (669) 265-6100 Fax: +1 (669) 265-6101 www.exar.com The content of this document is furnished for informational use only, is subject to change without notice, and should not be construed as a commitment by MaxLinear, Inc.. MaxLinear, Inc. assumes no responsibility or liability for any errors or inaccuracies that may appear in the informational content contained in this guide. 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Products are not authorized for use in such applications unless MaxLinear, Inc. receives, in writing, assurances to its satisfaction that: (a) the risk of injury or damage has been minimized; (b) the user assumes all such risks; (c) potential liability of MaxLinear, Inc. is adequately protected under the circumstances. MaxLinear, Inc. may have patents, patent applications, trademarks, copyrights, or other intellectual property rights covering subject matter in this document. Except as expressly provided in any written license agreement from MaxLinear, Inc., the furnishing of this document does not give you any license to these patents, trademarks, copyrights, or other intellectual property. Company and product names may be registered trademarks or trademarks of the respective owners with which they are associated. © 2016 - 2018 MaxLinear, Inc. All rights reserved XR22404_DS_081418 REV1B 15/15